Polypterus palmas, the Palmas bichir, is a stunning prehistoric fish known for its armored body and hardy nature—ideal for large freshwater tanks.

🐟 Polypterus palmas – Product Description

The Polypterus palmas, commonly called the Palmas bichir, is a striking and primitive fish native to West and Central Africa. Recognized by its elongated body, thick armored scales, and distinctive dorsal finlets, this species is popular among hobbyists who seek unique, hardy fish that evoke a prehistoric feel. Growing up to 18–20 inches (45–50 cm), the Palmas bichir is an excellent choice for experienced aquarists with ample tank space and interest in ancient fish species.

🌊 Water Conditions

• Temperature: 75–82°F (24–28°C)

• pH Range: 6.0 – 7.5 (slightly acidic to neutral)

• Hardness: 5–20 dGH

• Tank Size: Minimum 100 gallons recommended for adults

• Filtration: Moderate filtration with low to moderate current

• Substrate: Soft sand or smooth gravel to protect barbels and sensitive skin

• Tank Setup: Provide caves, driftwood, and hiding places to simulate natural habitat; dim lighting preferred to reduce stress

🍽️ Feeding Habits

• Diet: Carnivorous and opportunistic predator

  • Accepts live or frozen foods such as bloodworms, earthworms, shrimp, and small fish

  • Enjoys high-quality sinking pellets formulated for carnivorous fish

• Feeding Frequency: Feed once or twice daily, preferably during the evening or nighttime when they are most active

• Feeding Tips: Use feeding tongs or drop food near the bottom to encourage natural hunting instincts

🐠 Tank Mates

• Compatible Tank Mates:

  • Larger, peaceful to semi-aggressive fish such as large barbs, gouramis, and robust catfish

  • Other bichir species of similar size and temperament

• Avoid:

  • Small fish, which may be considered prey

  • Highly aggressive species that may stress or injure the bichir

  • Overcrowded tanks to reduce territorial disputes

🛠️ Care and Behavior

• Temperament:

  • Semi-aggressive, especially with conspecifics or similar-looking fish

  • Mostly nocturnal or crepuscular but may show daytime activity

  • Territorial; avoid housing multiple bichirs in smaller tanks

• Behavior:

  • Uses a modified swim bladder to breathe atmospheric air; requires access to the water surface

  • Slow, deliberate swimmers that enjoy exploring their environment

• Tank Maintenance:

  • Regular water changes (25–40% weekly) to maintain optimal water quality

  • Monitor water parameters to prevent buildup of toxins, as bichirs are sensitive to poor conditions

• Health:

  • Hardy but susceptible to infections if stressed or kept in suboptimal water conditions

  • Maintain stable temperature and avoid rapid changes

📌 Summary

The Polypterus palmas is a captivating prehistoric fish that offers aquarists a glimpse into ancient aquatic life. Its hardy nature, impressive armored body, and fascinating behavior make it a standout species for large freshwater tanks. While relatively easy to care for, it requires sufficient space, appropriate tank mates, and a well-maintained environment to thrive. Whether housed in a species-specific setup or with compatible large tank mates, the Palmas bichir is a rewarding addition for advanced hobbyists seeking unique and robust fish.